405734420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{222931}}^1$

素因数の和:222960

約数の個数: 48

約数和(自身を含む): 1048672128

約数和(自身を除く): 642937708

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 222931, 445862, 891724, 1114655, 1560517, 2229310, 2898103, 3121034, 4458620, 5796206, 6242068, 7802585, 11592412, 14490515, 15605170, 20286721, 28981030, 31210340, 40573442, 57962060, 81146884, 101433605, 202867210, 405734420]

約数ペア:

[(1, 405734420), (2, 202867210), (4, 101433605), (5, 81146884), (7, 57962060), (10, 40573442), (13, 31210340), (14, 28981030), (20, 20286721), (26, 15605170), (28, 14490515), (35, 11592412), (52, 7802585), (65, 6242068), (70, 5796206), (91, 4458620), (130, 3121034), (140, 2898103), (182, 2229310), (260, 1560517), (364, 1114655), (455, 891724), (910, 445862), (1820, 222931)]